Julian and Gregorian Calendar Calculator

Converts between Julian and Gregorian calendar dates.

Julian and Gregorian Calendar
    1. Calendar

Julian and Gregorian Calendar
The Gregorian calendar is used for dates on and after October 15, 1582 AD.
    Julian and Gregorian Calendar
    [1-10] /19Disp-Num
    [1]  2021/07/01 03:24   20 years old level / High-school/ University/ Grad student / A little /
    Purpose of use
    Attempting to convert from ancient Egyptian to Coptic to Gregorian to Julian because SOMEBODY apparently thinks Atem Yugioh's birthday is June 2nd because something something flooding of the Nile, even though the ancient Egyptian calendar certainly was NOT calibrated to the modern flooding of the Nile, and the calendar in use during the year of Atem's birth (if we consider him to have been born 3016 years before the events of Yugioh, first published in 1996) was basically just the Coptic calendar without a leap day.
    [2]  2021/06/25 13:37   20 years old level / An engineer / Useful /
    Purpose of use
    Validating a historical calendar implementation that can express arbitrary timelines of calendar system switches, interpret and stamp back out dates as they would have been written at the time.
    [3]  2021/06/11 21:47   20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Checking to see how you could calculate Julian date from Gregorian date for reference for a fanfiction I'm writing regarding a time traveler going to Rome and needing to convert back and forth between calendars, very helpful, thank you
    [4]  2021/02/17 07:53   60 years old level or over / A retired person / A little /
    Purpose of use
    Checking on comparative saints' days, trying to figure out why different sources don't agree! (Retired & researching university prof)
    [5]  2021/02/06 08:26   50 years old level / An office worker / A public employee / Useful /
    Purpose of use
    Converting names day date from Julian to Gregorian equivalent.
    [6]  2020/11/01 13:35   30 years old level / Others / Useful /
    Purpose of use
    Finding the Gregorian date for the beginning of Saturnalia.
    [7]  2020/08/27 17:51   60 years old level or over / An engineer / Very /
    Purpose of use
    I am a retired engineer researching on Easter Dates and have found out an easy way of determining Easter dates for any year without using computer or calculator .Both for Julian and Gregorian Easters. Also I research on Church history where old dates can be verified for accuracy wrt liturgical events. I found this method most easy and useful. Thanks
    [8]  2020/07/18 10:47   30 years old level / A teacher / A researcher / Very /
    Purpose of use
    Researching pre-Soviet Russian date
    [9]  2020/07/16 20:23   40 years old level / A teacher / A researcher / Useful /
    Purpose of use
    Working out the contemporary date of the assassination of William Rufus on Aug 2 1100 CE
    [10]  2020/05/13 13:39   30 years old level / Others / Very /
    Purpose of use
    Translating a Julian date from a Sumerian tablet in the 4th millennium BCE.


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